Vibration Analysis - SHINKAWA Electric · PDF fileWeb Server Vibration Analysis & Diagnostics...
Transcript of Vibration Analysis - SHINKAWA Electric · PDF fileWeb Server Vibration Analysis & Diagnostics...
Web Server
Vibration Analysis &Diagnostics System
Non-SHINKAWAMonitor
DAQpodDP-2000
DAQpodDP-2000 KJ-2000
Data transmission / removable HDDKenjin
infiSYSView Station
infiSYSRemote Station
DAQpodAP-2000
SD Converter
RadioTransmission
VM-5 Monitor VM-7 Monitor
Connected as necessary
DAQpodAP-2000
SD DepotUnd
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evel
opm
ent Wireless
NetworkSystemSWiNS
Device Server(Converts data fromnon-SHINKAWA system)
Portable vibrationmeter or the like
Ellaborating
Enterprise Asset Management (EAM)S-STation Integrated Platform
Distributed ControlSystem (DCS)
Main/Essential equipment (Turbines, power generators, large compressors, IDF, FDF, BFP, CWP) General purpose equipment/auxiliaries (Pumps, gears, motors, fans, compressors)
rtatable vble vibribration
Wireless SensorCA SensorCA SensorCA SensorFK Sensor
Non-SHINKAWASensorFK Sensor
XJ-2000
VM 7 Monito
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A vibration analysis & diagnostic system that is applicable to a variety of rotating machinery, helps safe operation and to improve operational efficiency.
infiSYS RV-200 precisely keeps track of and quickly feeds back conditions ofrotating machinery which are the key production assets of plants.
SHINKAWA CMS Overall Configuration
SHINKAWA's CMS is applicable to a variety of rotating machinery condition monitoring whether it is comprehensive with shaft vibration, axial position, phase mark, rotation speed etc., for large machines, or simple with only bearing vibration for small machines.
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In the CMS scheme, infiSYS RV-200 positions itself as a system which analyzes vibration for phase angle and frequency component, and displays the information in the form of various analysis graphs necessary for vibration diagnostics.
CMS (Condition Monitoring System)
Steam turbines Gas turbines Electric generators Feed pumps Fans
Blowers Compressors BOP machinery Rotating equipment critical to your facility
For all rotating machineryApplicable to a wide range from small rotating machinery supported by rolling element bearings to large rotating machinery supported by journal bearings.
High-speed and flexible system configurationWhile achieving high-speed data acquisition, the system can be configured with various condition monitors, including non-SHINKAWA monitors.
Sophisticated data analysis with various graphsThe software provides a variety of analytical graphs which are optimized for the type of machinery and condition, satisfying stringent demands of vibration analysts and other plant personnel.
User-friendly operability and plotting functionsIntuitive software interaction with drag & drop graph display manipulation, and graph area switching tab, etc.
Applications
Features
Helps customers improve productivity and reliabilityby optimizing plant operation.
Advantages
Vibration Analysis & Diagnostic System infiSYS RV-200
Detects abnormal symptoms from vibration characteristics or subtle changes in vibration. Reduces risks of unplanned production shutdown by taking a proactive approach.Advanced diagnostics reveal the causes and areas of anomalies and detailed analysis helps users practice optimum, efficient maintenance.
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infiSYS View Station
Software installed:infiSYS Analysis View
VM-773B
Software installed:infiSYS Remote ViewVM-774B
DAQpod
DP-2000
VM-5 orNon-SHINKAWAmonitor
VM-5 orNon-SHINKAWAmonitor
Ethernet
Ethernet Ethernet
Ethernet
EthernetEthernet
VM-7
DAQpod
AP-2000 DAQpod
AP-2000
HUB
infiSYS Remote Station infiSYS View Station
Software installed:infiSYS Analysis View
VM-773B
Software installed:infiSYS Remote ViewVM-774B
infiSYS Remote Station
DAQpod
DP-2000DAQpod
DP-2000
HUB
Vibration monitor (e.g. VM-5)
Buffered signals
Phase mark sensor Shaft vibration sensor Accelerationsensor
Rolling-element bearing of small rotating machinery
Flexible rotor of large rotating machinery
Buffered signals
Analysis data acquisition unit (DAQpod)
Analysis PCinfiSYSView Station
MonitorProcessing
Plot processing
Data base
Data communication control
Rotationspeed,amplitudeconversion,alert, etc.
Various graphsTrain diagramsList view
Communicationcircuit
Analysis processing
Phase analysisFrequency analysisRotation speedconversionAmplitude conversion
Phase marker (phase reference)
Vibration signals(waveform)
A/D
co
nver
sio
nPLC
Process data(1-5V,0-5V,0-10V)
For all rotating machinery
infiSYS RV-200 Basic System
infiSYS RV-200 Configuration Example(for Large Rotating Machinery)
Based on the vibration waveform detected by shaft vibration sensors, the system provides vibration monitoring and anomaly analysis for rated-speed operation, and shaft behavior analysis for critical startup/shutdown.
Based on the vibrat ion detected by accelerat ion sensors installed on the bearing housings, the system provides trend management and abnormality diagnostics not only on overall vibration but also on vibration of each fault frequency resulting from bearing failure.
Features 1
infiSYS RV-200 Configuration Example(for Small Rotating Machinery)
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When used for large rotating machinery, it acquires phase mark signals and shaft vibration waveforms, processes phase analysis and frequency analysis, and then displays the information in various graphs for further analysis. For small rotating machinery, infiSYS acquires acceleration vibration waveform of casing and the information is displayed with graphs based on the frequency analysis.
DAQpod AP-2000 DAQpod DP-2000
High-speeddata acquisition
- Trend data every 1 sec- Waveform data
every 10 sec
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High-speed and flexible system configurationFeatures 2
Varioussystem configurations
- VM-7- VM-5 (with DAQpod)- Non-SHINKAWA monitors
The system can be configured independently of a condition monitor that is
already deployed on large rotating machinery. Whether an existing SHINKAWA
monitor or non-SHINKAWA monitor, data can be acquired and analyzed via
DAQpod, upgrading the customer’s existing
system to a current analysis-capable system.
The machine’s data during startup/shutdown (transient
data) are acquired to a level, allowing for detailed
plotting of analysis graphs. The gradual
changes over time can also be
analyzed in real time.
Multi channel- Maximum number of inputs 480 ch
Analysis data acquisition unit DAQpod
Analyzes vibration waveform signals received from a condition monitor on large rotating machinery and sends analysis data to the infiSYS View Station. When it is used for bearing vibration analysis on small rotating machinery, acceleration sensors can be directly connected for data collection.
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* If the monitor is VM-7, DAQpod is not required.
Integrating, monitoring, and analyzing
vibration data of machinery in a plant in one
analysis system, the system contributes to a
plant’s stable operation with early detection,
analysis/diagnostics of abnormality.
Data display examples
Polar Plot
infiSYS RV-200 offers a variety of analysis and plotting functions.
Provides analysis and plotting functions required by vibration analysts certified in accordance with ISO 18436-2.* ISO18436-2: Condition monitoring and diagnostics of machines - Requirements for training and certification of personnel - Part 2 : Vibration condition monitoring and diagnostics
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Th is shows the v ib ra t ion vec to r a t t he t ime o f c r i t i c a l startup/shutdown of the machine. From this plot, the user can observe the balancing condition, vibration levels and critical speed during the startup/shutdown of the machine.Displayed data (Switchable display): 1X, 2XThis allows over-lay of current data on top of past data.
Trend Plot Machine Train DiagramThis plot displays shor t term and long term chronological changes using a line chart.Displayed data (multiple selections are allowed): Rotation speed, GAP, OA, 0.5 X amplitude, 0.5 X phase, 1X amplitude, 1X phase, 2X amplitude, 2X phase, Not-1X amplitude, nX1 to nX4 amplitude and phase, Smax amplitude, various alarm setting values.
The 3D illustration of rotating machinery diagram displays the
rotat ion speed as wel l as the locat ion and the v ibrat ion
amplitude of each measuring point.
For each machine, current values can be displayed in a list view.
Orbit and Waveform PlotThis plot composes signals from each X and Y sensor and
displays the dynamic motion of the center of a rotating shaft.
The Orbit plot helps to identify any abnormal status including
imbalance, misalignment, oil whirl and oil whip.
Bode PlotThis plot displays the amplitude and phase in separate graphs with rotation speed used as the horizontal axis.From this plot, the user can see the vibration status and critical speed during the startup/shutdown of the machine.Displayed data (Switchable display): 1X, 2XThis allows over lay of current data on top of past data.
Polar Plot (reference superimposition and speed indication)
For easy comparison, the data set as the base line is plotted over
the current or selected data. The rotation speed of multiple
clicked points can be labeled on the field while the RPM (speed)
button is active. At other times, the speed is displayed while the
cursor is over the point.
Sophisticated data analysis with various graphsFeatures 3
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S-V PlotA Speed - Vibration (S-V) trend plot shows the change in the vibration amplitude with rotation speed. The user can select multiple amplitude types from overall (OA), 0.5X, 1X, 2X, to display in the same field for understanding the critical speed or vibration condition during startup and shutdown of the rotating machinery.
Waterfall Plot Campbell Plot (Optional)This plot is used to analyze changes in frequency components
that occur over time.
Cascade plot can also be displayed with width (z-axis) as
rotation speed to analyze changes in frequency components in
relation to changes in rotation speed.
The X-axis shows the rotation speed; the Y-axis expresses the vibration frequency; the radial lines indicate each order; the size of the circle represents the vibration amplitude. This shows the vibration level relative to the change in the rotation speed. Whether or not a sequence of vibration is accompanying a specific order or it is of a certain frequency component can be seen visually.
Full Spectrum Plot (Optional)A spectrum plot that separately depicts the forward whirling motion and backward whirling motion of the rotating machine rotor. The X-axis is the frequency of the whirling motion (positive for forward, negative for backward), and the Y-axis is the amplitude of each frequency component or order.
Bearing Analysis (Optional)This window collectively displays the plots necessary for rolling bearing diagnosis. The following analysis functions are available per additional specification code, “/RB1” and “/RB2”./RB1 … Peak value analysis, order analysis, sideband analysis/RB2 … Crest factor, form factor, kurtosis, skewness, envelope.
Spectrum PlotThis plot shows the frequency analysis of the vibration data. The
X-axis represents the frequency or the order; the Y-axis shows
the ampli tude of each f requency component. The graph
identifies the frequencies and the orders to help determine the
cause of the abnormal condition of the rotating machinery.
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Sophisticated data analysis with various graphsFeatures 3
Case Studies
Unbalanced Vibration
The most common abnormal v ibrat ion is due to the
mismatch between shaft center and mass center, due to
manufacturing error or machine components missing.
The characteristic of the vibration generates the rotation
synchronous component (1X), which is sine wave or
similar. Vibration becomes largest at critical speed.
Self-excited, unstable vibration typical for sleeve bearing
supported rotating machinery. Possible causes include effects
from the shape of the sleeve bearing, oil film characteristics,
etc. Normally, this vibration appears at two or less times lower
than the critical speed, and the frequency is around half the
rotation synchronous frequency (0.5X).
Oil Whirl Vibration
When a rotor component is lost or f l ies of f, the
vibration conditions suddenly change. The typical
phenomenon inc ludes sudden changes in the
amplitude and phase angle (vibration vector) of the
rotation synchronous frequency component (1X).
Loss of Rotor Component
Vibration that occurs when the shaft centers of driving
rotating machinery and its associated driven rotating
machinery are not properly aligned. Typically the
vibration includes rotation synchronous frequency
component (1X) and harmonic components (2X, 3X).
Misalignment Vibration
Critical Speed = 2328 rpm(Vibration 327μmp-p)
1X
[Normal condition]
S-V Plot
S-V Plot
Obit & Waveform Plot Spectrum Plot
Obit & Waveform Plot
Polar Plot
Spectrum Plot
Spectrum Plot
Spectrum Plot
[Misalignment occured]
1X
OA
0.5X
0.5X
1X
1X
1X
2X
2X
Rotor Component Loss(2485rpm)
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Diagnosis Screens
ApplicationsThe diagnostics are applicable to the following rotating machinery with rolling-element bearings or journal bearings.
The diagnostic results are derived from collected vibration data. No responsibility can be accepted for any loss or damage that might
arise from the use of the information.
Installing VM-781B infiSYS Diagnostic Software adds a diagnostic function to VM-773B infiSYS Analysis View Software or VM-774B infiSYS
Remote View Software. The possible causes of the abnormal vibration are diagnosed based on the analysis and are listed from the most to
the third likely to support technical engineers with their abnormal vibrations diagnostics.
Failure modes to be determined
Unbalance Permanent bow / Lost rotor parts
Seal rub Misalignment
Friction induced whirl Critical speed
Rotor crack Cavitation
Gear inaccuracy Vane vibration
Nonsymmetrical rotor Draft core
Steam whirl / Seal whirl Surging
Oil whip Oil whirl
Partial rub
Diagnostics with Journal Bearing
Bearing damage Insufficient bearing lube due to grease deterioration
Lubricating trouble Insufficient tightness - Bearing
Unequal bearing stiffness Unbalance
Vane unbalance Cooling fin unbalance
Coupling inaccuracy of damage Misalignment
Seal or rotor rub Inaccurate tooth contact
Tooth surface wear Electrically excited vibration
Insufficient tightness - Casing Vane rub
Diagnostics with Rolling Bearings
Note:
● Turbines ● Electric generators ● Motors ● Blowers ● Pumps ● Compressors
Example (rotor unbalance) Example (oil whirl)
Examples of easy operation
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Tile display
Page switching tab
Drag & drop
User-friendly operability and plotting functionsFeatures 4
From tree at left to display area at right, desired plots can
be displayed anywhere you want.
The desired channel plot can be picked up instantly from the
display window. The desired plot window opens with one click.
Regular Monitoring Data sample page
Rated Analysis sample page
Startup Analysis sample page
infiSYS RV-200 (hardware & software) has a simple user interface, that is easy and instinctively operated by most plant personnel.
Quick learning of graphic display.
Desired graph display page can be displayed simply by switching the tabs.
A step to create a new page is also simple. (Up to 20 pages.)
Pages with desired plots in desired arrangement can be created with specified tab name. Users can lock the displays as well, this allows uniformity and protection on your custom view settings.
Up to 20 pages can be created.
Instantly or at pre-set times
Extension Features for Even Better Operation and Reliability
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Example
Example
By adding to infiSYS Analysis View (version 1.2.0.0 or later), interactive data communication
with the host system, such as DCS and PLC, will be available through an OPC server.
The infiSYS RV-200 system acquires process data, such as temperature, pressure, generating power, etc.
along with vibration data, and performs a variety of analyses with the information linked together.
Likewise, the host system can utilize the analysis data of infiSYS Analysis View.
By installing this software to the infiSYS View Station or Remote Station,
the user will be able to output the event history, trend data and analysis graph images
into report files.
infiSYS Report Software VM-783B
infiSYS View Station
An X-Y plot displays selected pairs of data acquired by infiSYS which are set as the x-axis and the y-axis. This is useful to check the relationship between the vibration and the process data, i.e., load, temperature, pressure, etc.
Also, a display of process data in a bar graph or a trand plot will become available.
Automatic report generation Automatic printingInstantly or at pre-set timesInstantly or at pre-set times
For more efficient trend management and vibration analysis/diagnostic reporting
OPC Client Software VM-784BCommunication between infiSYS Analysis View and the host network via OPC server
Using a preinstalled or customized template, the user can quickly create a report in a desired format.If it is pre-set, the system can create and print out reports at defined intervals or at the time of alarm activation.
● Easier, faster report preparation using a format template● Easier, faster report preparation using a format template
Creating a generating power (load) - vibration correlation plot (L-V plot)
infiSYS View Station
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Extension Features for Even Better Operation and Reliability
Switching HUB
Primary
Secondary
infiSYS View Station
SoftwareinfiSYS Analysis View
VM-773B
VM-7 VM-7
*1
*2
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*2*2
A LAN card must be added on the infiSYS View Station for
secondary communication.
VM-742B Network Communication Modules, both with analysis
function and of supported versions, must be installed in Slot
C1 and Slot C2.
Support for Analysis Communication RedundancyCommunication between the infiSYS View Station and VM-7 can be provided with redundancy.
This prevents loss of data due to disconnection, hub failure or communication failure due to noise on the primary line.
When communication failure is detected, inifiSYS Analysis View automatically switches to the secondary line
and continues communicating with the VM-7 monitor.
infiSYS View StationOPC Server
DCS(Distributed Control System)
SoftwareinfiSYS Analysis View
VM-773B
DAQpodDP-2000
VM-5 orNon-SHINKAWA monitor
VM-5 orNon-SHINKAWA monitor
VM-5 orNon-SHINKAWA monitor
VM-5 orNon-SHINKAWA monitor
Trend dataWaveform dataProcess data
Process data
Process data(Voltage or current signal)
Process data(Voltage signal)
Signal conditioner
Signal conditioner
Process data(Voltage signal)
Signal conditioner
VM-7
DAQpodAP-2000
HUB
Trend dataWaveform dataProcess data
Trend dataWaveform dataProcess data
Analysis data(Trend data)
*1
Process Data Input Function
For data interaction with DCS via
the OPC server, installat ion of
VM-784B OPC Client Software to
t h e i n f i S Y S V i e w S t a t i o n i s
required. (For the support version
of this function, please refer to the
separate “Updated Information”.)
To incorporate process data, including temperature, power, etc., into the infiSYS View Station, the user can either
provide analog signals to DAQpod, or digitally communicate with DCS via the OPC server.
With VM-7, analog signal types are voltage and current; with DAQpod, analog signals are limited to voltage.
For digital communication, refer to page 10, “OPC Client Software”.
*1
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The SHINKAWA Network
U.S.A.SEC of America, Inc.807 East Main Street, Suite 2-240, Durham, NC 27701 Tel : 877-586-5690 Fax : 513-297-9003E-mail : [email protected] : http://www.sec-america.com
VIETNAMSHINKAWA Electric Co., Ltd.Hanoi Representative OfficeUnit 1013, Prime Business Center, 10th Floor, Pacific Place Building, 83B Ly Thuong Kiet Street,Tran Hung Dao Ward, Hoan Kiem District, Ha NoiTel : 84-4-3946-1058 Fax : 84-4-3946-1025
SINGAPORESHINKAWA Electric Asia Pte, Ltd.15 Queen Street, #03-08 Tan Chong Tower, Singapore 188537Tel : 65-6339-2393 Fax : 65-6334-5510
MALAYSIASHINKAWA Electric of Malaysia Sdn. Bhd.No. 6-2, Jalan 9/23E, Taman Danau Kota, Batu 4 1/2, Off Jalan Genting Kelang, 53300 Setapak, Kuala LumpurTel : 60-3-4142-3310 Fax : 60-3-4148-1322
CHINASHINKAWA Electric of Shanghai Co., Ltd.16G, NO 379 Pudong South Road, Pudong New District, Shanghai 200120Tel : 86-21-6886-9482 Fax : 86-21-6886-9404Web : http://www.shinkawa.com.cn
Subsidiary Sales and ServiceHeadquaters
JAPAN (Headquaters)SHINKAWA Electric Co., Ltd.
SHINKAWA is employing global thinking to create a businesswith a worldwide network currently comprising over 50 bases around the world.
VM-5 orNon-SHINKAWA monitor
VM-5 orNon-SHINKAWA monitor
System Specifications
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Data display function Displayable graphs :Trend Plot, Long Term Trend Plot, Bar Graph, Spectrum Plot, Waveform Plot, Orbit & Waveform Plot, Waterfall Plot, Polar Plot, Shaft Centerline Plot, X-Y Plot, S-V Plot, Bode Plot(Optional plots : Cascade Plot, Full Spectrum Plot, Full Waterfall Plot, Full Cascade Plot, Campbell Plot) Analysis (Optional) :Peak analysis, order analysis, side band analysis, crest factor, form factor, kurtosis, skewness, envelope, runout (slow roll vector)List view :List of Current Values, List of Alarm Setting Values, Event History, Machine Train (maximum 24)
Number of histories Number of transient histories per measuring point 100 to 1,000Number of alarm histories per measuring point 100 to 1,000Number of event histories per hardware item 1,000 to 10,000
Transient data saving function Data saving periodStartup period : From [Specified number of revolutions] to [specified number of revolutions] + N minutes (can be set to any time between 0 - 60 minutes)(Example : 100 rpm to 2,950 rpm + 20 minutes)Shutdown period : From [Specified number of revolutions] to [specified number of revolutions](Example : 2,950 rpm to 100 rpm)Data saving interval Trend data : 1 sec (critical mode), 10 sec (BOP mode)
Waveform data : Based on the ∆t setting or ∆rpm setting
Alarm data saving feature(Applicable to critical mode only)
Time range of the data to be savedData saving interval
Type of alarm
Trend data : 24 hours of data before and after the alarm occurred.Waveform data : 24 hours of data before and after the alarm occurred.Trend data : Every 1 secWaveform data : Based on the normal waveform data saving interval.OA amplitude, 1X amplitude / phase, 2X amplitude / phase, rotation speed, process data
Short Term / Long Termdata saving feature
Short Term data saving periodShort Term data saving interval
Long Term data saving periodLong Term data saving interval
Can be set to any length between 1 day and 31 days.Trend data : 1 sec (critical mode), 10 sec (BOP mode)Waveform data : 10 sec / 20 sec / 30 sec / 1 min / 2 min /
3 min / 5 min / 10 min1 yr / 2 yrs / 3 yrs / 4 yrs / 5 yrs10 min / 20 min / 60 min / 120 min
Number of FFT lines VM-7 : 800 linesDAQpod : 400 / 800 / 1600 lines
* Actual number of points measurable may be limited due to system configuration.Maximum number of measuring points 480 points*
* DP-2000H is composed of 2 systems, therefore counted as two units in this calculation.Maximum number of connections 20 units* (VM-7, DAQpod )
High speed acquisition
The system and hardware specifications in this document are just overviews. For details, please refer to the specification sheets of the infiSYS RV-200 System and other related products.
Note:
Trend data : Taken at intervals of 0.1 sec from 20 sec before the alarm until 10 sec after the alarm.Waveform data : Taken at the selected intervals (minimum 10 sec) from 60 sec before the alarm until 60 sec after the alarm.
AP-2000H* (19" rack) : Maximum number of vibration channels
= [48 ch - (number of phase marker channels)]
Number of phase marker channels = [0, 4, 8, 12, 16 ch]
AP-2000D* (19" rack) : Maximum number of vibration channels
= 48 ch - (number of phase marker channels)
Number of phase marker channels = 0, 4, 8, 12, 16 ch
DP-2000 (24 ch box) : Maximum number of vibration channels
= 24 ch - (number of phase marker channels)
Number of phase marker channels = 0, 4, 8 ch
Trend data Rotation speed, OA amplitude, GAP, 0.5X amplitude / phase, 1X amplitude / phase,
2X amplitude / phase, Not-1X amplitude, nX1 to nX4 amplitude/phase, Smax amplitude,
8X or higher amplitude, IR / OR / BS vibration.
Data collection interval Trend data collection interval
Every 1 sec (every 0.1 sec during alarm high speed acquisition mode)
Waveform data collection interval
During normal operation : Every 10 / 20 / 30 sec, 1 / 2 / 3 / 5 / 10 min
During transient : ∆t setting : Trend every 1 sec (fixed)
: Waveform every 10 sec (fixed)
: ∆rpm setting : From ∆1 rpm to ∆100 rpm (1 rpm increments)
The actual intervals that can be used to collect data will be limited depending on the number of channels and system requirements.
Network Interface Ethernet 100 Base-TX
Power supply voltage AP-2000H / D (19" rack ) : Rated voltage 100-240VAC
DP-2000 (24 ch box) : Rated voltage 24 VDC
Dimensions AP-2000H / D (19" rack ) : 482 (W) x 132.5 (H) x 444 (D) mm
DP-2000 (24 ch box) : 96 (W) x 224 (H) x 165 (D) mm
Trend data Rotation speed, OA amplitude, GAP, 0.5X amplitude / phase, 1X amplitude / phase,
2X amplitude / phase, Not-1X amplitude. nX1 to nX4 amplitude / phase, Smax amplitude.
Data collection interval Trend data collection interval
Every 1 sec (Process data : Every 10 sec)
Waveform data collection interval
During normal operation : Every 10 / 20 / 30 sec, 1 / 2 / 3 / 5 / 10 min
During transient : ∆t setting : Trend every 1 sec (fixed)
: Waveform every 10 sec (fixed)
: ∆rpm setting : From ∆1 rpm to ∆100 rpm (1 rpm increments)
The actual intervals that can be used to collect data will be limited depending on the number of channels and the system requirements.
Network Interface Ethernet 100 Base-TX
Power supply voltage Supports power supply redundancy with VM-75□B Power Supply Module
Rated voltage 100-240 VAC / 50-60 Hz, 24 VDC, 110-220 VDC
Hardware Specifications
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400 / 800 / 1600 lines
Number of inputs(number of channels)
Number of frequency analysis lines
Number of inputs (number of channels)
Number of frequency analysis lines 800 lines
Phase marker channels : Rack common 4ch, vibration module specific 1 ch/module vibration channels : 44 ch
x2 systems